In this work we apply the GN model, both in its original form [1]} and the modified ISRS-version from [2]} to calculate a NLI coefficient for every multiplexed channel over a variety of transmission bandwidths to quantify the potential benefits of using an extended transmission window including all modelled effects to date.
Both models have been shown to accurately model the behaviour of the system for bandwidths up to 7.3 THz [3]} and 9 THz [4]}. The SNR of the i-th channel was calculated using:
\(SNR_i=\frac{P_{(ch,i )}}{P_{(ASE,i)}+P_{(s-s,i)}+P_{(s-n,i)}},\) 
